<?php
/**
 * Upload Action integrated with amo that saves uploaded file to temp and
 * declares it in database with status 0
 */
class UploadAction extends CAction {
    public function run() {
        // Settings
        // ---------------------
        $targetDir = UploadWidget::$tempDir;
        // ---------------------
        
        $cleanupTargetDir = false; // Remove old files
        $maxFileAge = 60 * 60; // Temp file age in seconds

        // 5 minutes execution time
        @set_time_limit(5 * 60);

        // usleep(5000);
        // Get parameters
        $chunk = isset($_REQUEST["chunk"]) ? $_REQUEST["chunk"] : 0;
        $chunks = isset($_REQUEST["chunks"]) ? $_REQUEST["chunks"] : 0;
        $fileName = isset($_REQUEST["name"]) ? $_REQUEST["name"] : '';

        // Create unique filename
        $fileName = UploadUtils::createUniquefilename($fileName, $targetDir);

        // Create target dir
        if (!file_exists($targetDir))
            @mkdir($targetDir);

        // Remove old temp files
        if (is_dir($targetDir) && ($dir = opendir($targetDir))) {
            while (($file = readdir($dir)) !== false) {
                $filePath = $targetDir . DIRECTORY_SEPARATOR . $file;

                // Remove temp files if they are older than the max age
                if (preg_match('/\\.tmp$/', $file) && (filemtime($filePath) < time() - $maxFileAge))
                    @unlink($filePath);
            }

            closedir($dir);
        } else
            die('{"jsonrpc" : "2.0", "error" : {"code": 100, "message": "Failed to open temp directory."}, "id" : "id"}');

        // Look for the content type header
        if (isset($_SERVER["HTTP_CONTENT_TYPE"]))
            $contentType = $_SERVER["HTTP_CONTENT_TYPE"];

        if (isset($_SERVER["CONTENT_TYPE"]))
            $contentType = $_SERVER["CONTENT_TYPE"];

        if (strpos($contentType, "multipart") !== false) {
            if (isset($_FILES['file']['tmp_name']) && is_uploaded_file($_FILES['file']['tmp_name'])) {
                // Open temp file                
                $out = fopen($targetDir . DIRECTORY_SEPARATOR . $fileName, $chunk == 0 ? "wb" : "ab");
                if ($out) {
                    // Read binary input stream and append it to temp file
                    $in = fopen($_FILES['file']['tmp_name'], "rb");

                    if ($in) {
                        while ($buff = fread($in, 4096))
                            fwrite($out, $buff);
                    } else
                        die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');

                    fclose($out);
                    unlink($_FILES['file']['tmp_name']);
                } else
                    die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
            } else
                die('{"jsonrpc" : "2.0", "error" : {"code": 103, "message": "Failed to move uploaded file."}, "id" : "id"}');
        } else {
            // Open temp file
            $out = fopen($targetDir . DIRECTORY_SEPARATOR . $fileName, $chunk == 0 ? "wb" : "ab");
            if ($out) {
                // Read binary input stream and append it to temp file
                $in = fopen("php://input", "rb");

                if ($in) {
                    while ($buff = fread($in, 4096))
                        fwrite($out, $buff);
                } else
                    die('{"jsonrpc" : "2.0", "error" : {"code": 101, "message": "Failed to open input stream."}, "id" : "id"}');

                fclose($out);
            } else
                die('{"jsonrpc" : "2.0", "error" : {"code": 102, "message": "Failed to open output stream."}, "id" : "id"}');
        }

        // ---------------------
        // Save the file to db
        $file=new File;
        //$file->entity   = get_class($this->getOwner());
        $file->EXid     = -1;
        $file->uid      = Yii::app()->user->id;
        $file->weight   = 0;
        $file->timestamp= time();
        // Because flash labels everything with app/octet-stream
        // $file->filemime = $_FILES['Filedata']['type'];
        $file->filemime = CFileHelper::getMimeTypeByExtension($targetDir . DIRECTORY_SEPARATOR . $fileName);
        $file->filesize = filesize($targetDir . DIRECTORY_SEPARATOR . $fileName);
        $file->status   = 0;
        $file->filename = $fileName;
        // Store it in session
        UploadUtils::addFileToSession($file);
        // ---------------------

        // Return JSON-RPC response
        die('{"jsonrpc" : "2.0", "result" : null, "id" : "id"}');
    }

}
